Question

question 11 which of the following is the not equal operator? ○ <> ○ not ○ * & ○ !=

Explanation:

• The operator <> is used as a not - equal operator in some database query languages like SQL.
• The keyword NOT is a logical operator used for negation in conditions (e.g., in WHERE clauses in SQL) but is not a not - equal operator.
• The symbols and & have different uses ( is often a multiplication or wildcard operator, & is a bit - wise AND or used for string concatenation in some cases) and are not not - equal operators.
• The operator != is a commonly used not - equal operator in many programming languages like Python, Java, etc. However, in the context of database query languages like SQL, <> is the standard not - equal operator. But considering the options, both <> and != are used for not - equal in different contexts. But looking at the options, the most appropriate answer considering common usage in programming and database contexts (where <> is SQL's not - equal and != is used in many programming languages) but if we consider the options given, the <> and != are the not - equal operators. But in the options, the first option is <> and the last is !=. However, in SQL (a common context for such questions in computer science which is a sub - field of Natural Science), the not - equal operator is <> and in programming languages like Python, Java, etc., it is !=. But since the options are given, we need to check which is the not - equal operator. The NOT is a logical negation keyword, *& are not related to not - equal. So the not - equal operators among the options are <> and !=. But if we have to choose from the options, both <> (used in SQL) and != (used in many programming languages) are correct. But maybe in the context of the question (maybe related to SQL or a programming language), but looking at the options, the correct options are A. <> and D. != (assuming the last option is D, but in the given image, the last option is !=). But if we have to choose one, in SQL, <> is the not - equal operator, and in programming languages like Python, != is. But the question is asking "which of the following is the not equal operator", so both <> and != are not - equal operators. But among the options:
• Option A: <> is a not - equal operator (used in SQL).
• Option D: != is a not - equal operator (used in many programming languages).

But maybe the question is from a database context, so <> is the answer, or from a programming context, != is. But looking at the options, the first option is <> and the last is !=.

Answer:

A. <> and D. != (If we consider both, but if only one is to be chosen, depending on the context. In SQL, A. <>; in programming languages like Python, Java, etc., D. !=.)